6533b837fe1ef96bd12a301c
RESEARCH PRODUCT
Diffraction-managed superlensing using plasmonic lattices
Carlos J. Zapata-rodríguezDavid PastorJuan Jose MiretMaría Teresa Caballero Caballerosubject
PhysicsDiffractionSuperlensbusiness.industrySuperlatticePhysics::OpticsDielectricAtomic and Molecular Physics and OpticsElectronic Optical and Magnetic MaterialsWavelengthOpticsNegative refractionOptoelectronicsElectrical and Electronic EngineeringPhysical and Theoretical ChemistrybusinessPlasmonBeam (structure)description
Abstract We show that subwavelength diffracted wave fields may be managed inside multilayered plasmonic devices to achieve ultra-resolving lensing. For that purpose we first transform both homogeneous waves and a broad band of evanescent waves into propagating Bloch modes by means of a metal/dielectric (MD) superlattice. Beam spreading is subsequently compensated by means of negative refraction in a plasmon-induced anisotropic medium that is cemented behind. A precise design of the superlens doublet may lead to nearly aberration-free images with subwavelength resolution in spite of using optical paths longer than a wavelength.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2012-07-01 | Optics Communications |